Either surprising or early
The line from the fireside chat that is the best example of president roosevelt's addressing the concerns of the audiences would be : unemployment remains a serious problem
The audiences of fireside chat is the common people during the great depression, so the concern of most of the audience would be unemployment
hope this helps
The supporting details should be included in the Body Paragraphs of an essay. The introduction is an introduction of what you plan to write about, and the thesis is included in the introduction where you specifically mention your main topics/points. However you elaborate on these in the body paragraphs and these elaborations are your supporting details. The conclusion is a summary of your essay and should not be introducing any new information.
The correct answer would be the third option, prosperous. This means it's successful and doing well :)
